After her siren clan is wiped out and her sister is butchered for the immortal Tidepearl, Sereia abandons the sea and enters the royal palace as a dancer. Behind her beauty lies blood magic, shadowcraft, and a carefully laid trap for King Aldric and Queen Isolde alike. With every move, she turns passion into a weapon, feeding a revenge plot aimed at destroying the treacherous human kingdom and making the murderers suffer.